2,4-DB methyl ester Back Catalog number: 3355.11-100-AN Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 0707.14-500-IO 1,4,6,7-Tetramethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13764-18-6 Price on request 93443 Citric acid [0.2% wt] Price on request 79688 4,4’-DDE Price on request